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I'm not a guru, but I think if 'right extend' is not set on the
study, the LastValue() will return 0 because the last value of the
study array will be undefined.
--- In amibroker@xxxxxxxxxxxxxxx, "Bruce Nutter" <bdnutter@xxxx>
wrote:
> Gurus and Jayson
> I tried this code so I could see the difference between the two
> horizontal lines. But the results I get in the interpretation
window is
> shown below. Could some guru please tell me why this does not work.
(For
> those of you who might ask yes the labels of my horizontal study
lines
> are "re" and "su")
> Formula code:
> x=LastValue(Study("re"));
> y=LastValue(Study("su"));
> WriteVal(x);
> WriteVal(y);
> WriteVal(x-y);
> Interpretation window result:
> 0
> 0
> 0
>
>
> Bruce
>
> -----Original Message-----
> From: Jayson [mailto:jcasavant@x...]
> Sent: Tuesday, October 14, 2003 9:49 AM
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: RE: [amibroker] How do I subtract the difference between
two
> horizontal study lines? (in AFL)
>
> Brian,
> have a look in the help files for Study(). You can name your trend
line
> than call its value in a code.
>
> for instance in this exploration I have named 2 study lines and
called
> the last value of each and subtracted one from the other....
>
>
> Filter=C>0;
> x=LastValue(Study("s1"));
> y=LastValue(Study("s2"));
> AddColumn(x,"");
> AddColumn(y,"");
> AddColumn(x-y,"");
>
>
> Regards,
> Jayson
> -----Original Message-----
> From: Bruce Nutter [mailto:bdnutter@x...]
> Sent: Tuesday, October 14, 2003 12:26 PM
> To: amibroker@xxxxxxxxxxxxxxx
> Subject: [amibroker] How do I subtract the difference between two
> horizontal study lines? (in AFL)
> Gurus,
> Does anybody know how to subtract between two horizontal study
lines in
> AFL code? I have to study lines that I move around to calculate
entry
> and exit points. What I'd like to do is to show that vertical
distance
> between these two horizontal lines in the interpretation window.
Would
> one of you gurus please let me know how to do this?
> Bruce
>
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